Question

Explain the preparation of chlorine in the laboratory.

Answer 1

Take nearly 20 g of manganese dioxide in the flask. Add concentrated hydrochloric acid to it through thistle funnel so that tip of the thistle funnel is dipped in the acid. Heat the flask. The gas liberated. The liberated gas is collected in the jar by the upward displacement of air.

$Mn{O}_2+4HCl\to MnC{l}_2+C{l}_2\uparrow +2H_{2}O$